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zimovet [89]
3 years ago
14

What number must you add to complete the square? x2 + 22x = 9

Mathematics
1 answer:
Olegator [25]3 years ago
3 0
<span>x^2 + 22x + 121 = 9 + 121  ..............a^2 + 2ab + b^2 = (a+b)^2

(x + 11)^2 = 130

answer

</span><span>you must add 121  to complete the square</span>
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